Results 31 to 40 of about 2,843,165 (290)
Understanding Solar Cycle Variability [PDF]
The Astrophysical Journal, 2017 Abstract The level of solar magnetic activity, as exemplified by the number of sunspots and by energetic events in the corona, varies on a wide range of timescales. Most prominent is the 11-year solar cycle, which is significantly modulated on longer timescales.
R. H. Cameron, M. Schüssler
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Periodic Variation of Solar Flare Index for the Last Solar Cycle (Cycle 24)
Advances in Astronomy, 2021 In this study, we used the flare index (FI) data taken from Kandilli Observatory for the period of 2009–2020. The data sets are analyzed in three categories as Northern Hemisphere, Southern Hemisphere, and total FI data sets.
Atila Ozguc +4 more
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Solar-Terrestrial Physics, 2023 Solar activity and solar wind parameters decreased significantly in solar cycles (SCs) 23–24. In this paper, we analyze solar wind measurements at the rising phase of SC 25 and compare them with similar data from the previous cycles. For this purpose, we
Yermolaev Y. I. +8 more
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Five Solar Cycles of Solar Corona Investigations
Solar Physics, 2022 AbstractThese are the memoirs of fifty years of research in solar physics, closely related to the history of three of the major solar space missions, from the Solar Maximum Mission, SMM, to Solar Orbiter, at present in navigation toward vantage points closer and closer to the Sun.
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Applied Sciences, 2020 Today, as fossil fuels are depleted, renewable energy must be used to meet the needs of human beings. One of the renewable energy sources is undoubtedly the solar–geothermal power plant.
Massomeh Alibaba +5 more
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Journal of Sustainable Development of Energy, Water and Environment Systems, 2020 This paper presents the feasibility analysis of a small-scale low-temperature solar organic Rankine cycle power system. The heat transfer fluid for running the organic Rankine cycle system is hot water with a temperature of 120 °C provided by an ...
Khaled Hossin +2 more
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The 8‐Year Solar Cycle During the Maunder Minimum
AGU Advances, 2023 The presence of grand minima, characterized by significantly reduced solar and stellar activity, brings a challenge to the understanding of solar and stellar dynamo. The Maunder Minimum (1645–1715 AD) is a representative grand solar minimum.
Limei Yan +10 more
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Performance of a building integrated photovoltaic/thermal (BIPVT) solar collector [PDF]
, 2009 The idea of combining photovoltaic and solar thermal collectors (PVT collectors) to provide electrical and heat energy is an area that has, until recently, received only limited attention.
Carson, James K. +3 more
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Predictability of the Solar Cycle Over One Cycle
The Astrophysical Journal, 2018 Abstract The prediction of the strength of future solar cycles is of interest because of its practical significance for space weather and as a test of our theoretical understanding of the solar cycle. The Babcock–Leighton mechanism allows predictions by assimilating the observed magnetic field on the surface.
Jie Jiang +3 more
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The Astrophysical Journal Letters, 2023 The network structure seen in the solar images is the outline of supergranulation, which is the large-scale convection in the Sun with a size of about 30 Mm and a lifetime of 24 hr.
K P Raju +3 more
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